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/************************************************************
* sched_setupstreams.c
*
* Copyright (C) 2007 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name Gregory Nutt nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
************************************************************/
/************************************************************
* Included Files
************************************************************/
#include <nuttx/config.h>
#if CONFIG_NFILE_DESCRIPTORS > 0 && CONFIG_NFILE_STREAMS > 0
#include <sched.h>
#include <nuttx/fs.h>
#include <nuttx/lib.h>
/************************************************************
* Private Functions
************************************************************/
/************************************************************
* Public Functions
************************************************************/
int sched_setupstreams(_TCB *tcb)
{
/* Allocate file strems for the TCB */
tcb->streams = lib_alloclist();
if (tcb->streams)
{
/* fdopen to get the stdin, stdout and stderr streams.
* The following logic depends on the fact that the library
* layer will allocate FILEs in order.
*
* fd = 0 is stdin
* fd = 1 is stdout
* fd = 2 is stderr
*/
(void)lib_fdopen(0, "r", tcb->filelist, tcb->streams);
(void)lib_fdopen(1, "w", tcb->filelist, tcb->streams);
(void)lib_fdopen(2, "w", tcb->filelist, tcb->streams);
}
return OK;
}
#endif /* CONFIG_NFILE_STREAMS && CONFIG_NFILE_STREAMS*/
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